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ASTM Standards

HIGHLIGHTS OF ASTM SPECIFICATIONS FOR STAINLESS STEEL TUBES AND PIPES

Specifications

Allowable Outside Diameter Variations
in mm

Allowable Wall
Variations in %

Exact length Tolerances in mm

Testing

ASTMA-213
Seamless Ferritic &
Austenitic steel,
Boiler & Superheater Tubes & Austenitic
steel Heat
Exchange Tubes

Diameter
Over
Under
Over
Under
Over
Under
• Tension Test
• Flattening Test
• Flare Test
• Hardness Test
• 100% Hydrostatic Test or NDT

Under 25.4
25.4-38.1 incl.
38.1-50.8 excl.
50.8-63.5 encl.
63.5-76.2 excl.
76.2-101.6 incl.

0.1016
0.1524
0.2032
0.2540
0.3048
0.3810
0.1016
0.1524
0.2032
0.2540
0.3048
0.3810
20
20
22
22
22
22
0
0
0
0
0
0
3.175
3.175
3.175
3.760
4.760
4.760
0
0
0
0
0
0

ASTMA-249
Welded
Austenitic steel
Boiler, Superheater,
Heat Exchanger
& Condenser Tubes

Under 25.4
25.4-38.1 incl.
38.1-50.8 excl.
50.8-63.5 excl.
63.5-76.2 excl.
76.2-101.6 incl.

0.1016
0.1524
0.2032
0.2540
0.3048
0.3810
0.1016
0.1524
0.2032
0.2540
0.3048
0.3810
10
10
10
10
10
10
10
10
10
10
10
10
3.175
3.175
3.175
4.760
4.760 4.760
0
0
0
0
0
0
• Tension Test
• Flattening Test
• Flange Test
• Reverse Bend Test
• Hardness Test
• 100% Hydrostatic Test or NDT

ASTMA-269
Seamless & Welded
austenitic steel
tubing for general service

Under 12.7
12.7-38.1 excl.
38.1-88.9 excl.
88.9-139.7 excl.
139.7 203.2 excl.

0.13
0.13
0.25
0.38
0.76
0.13
0.20
0.25
0.28
0.38
15
10
10
10
10
15
10
10
10
10
3.2
3.2
4.8
4.8
4.8
0
0
0
0
0
• Flare Test (Seamless only)
• Hardness Test
• Flange Test (Welded only)
• Reverse Flattening Test (Welded only)
• 100% Hydrostatic Test or NDT

ASTMA-270
Seamless & Welded
austenitic steel for
Sanitary Tubing

Under 2504
2504 to 50.8 excl.
50.8 to 76.2 excl.
76.2 to 101.6 excl.
0.13
0.20
0.25
0.38
0.13
0.20
0.25
0.38
12.5
12.5
12.5
12.5
12.5
12.5
12.5
12.5
3.2
3.2
3.2
3.2
0
0
0
0
• Reverse Flattening Test
• 100% Hydrostatic Test or NDT
• External polish on all tubes
• Refer to ASTM A-270

ASTMA-312
Seamless, Welded
& Heavily Cold worked Austenitic SS Pipes

1/8 to 21/2 incl.,
a II t/D ratios
3 to 18 incl.,
t/D up to 5 % incl.
3 to 18 incl.,
t/D> 5 %
0.40
0.80
1.60
0.80
0.80
0.80
20.0
22.5
15.0
12.5
12.5
12.5
6.35
6.35
6.35
0
0
0
• Tension Test
• Flattening Test
• 100% Hydrostatic Test or NDT
• Refer to ASTM A- 999

ASTMA-688 Welded Feed water heater 'U'Tubes

Under 38.10 mm

0.1016
0.1016
+20



+10
-10
(For Avg. Walk thk)

-0
(for Min. Walk thk)
3 to 13
0
• Tension Test
• Flattening Test
• Flange Test
• Reverse Bend Test
• Hardness Test
• Reverse Flattening Test
• 100% Hydrostatic Test or NDT
• Air under water test

Equivalent EN Specifications

EN 10216 - 5 Stainless Steel Seamless Tubes for High Pressure Applications
EN 10217-7 Stainless Steel Welded Tubes for High Pressure Applications
EN 10297 - 2 Stainless Steel Seamless Tubes for General Applications
EN 10296 - 2 Stainless Steel Welded Tubes for General Applications

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